Sulfur and mercury removing agent

A mercury removal agent and mercury removal technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of low desulfurization and mercury removal efficiency, low sulfur and mercury capacities, etc., and achieve improved desulfurization and mercury removal Efficiency, increase dispersion, increase the effect of desulfurization and mercury removal rate

Active Publication Date: 2010-02-24
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the low sulfur capacity and mercury capacity of the desulfurization and mercury removal agent in the prior art, and the problem that the desulfuri

Method used

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  • Sulfur and mercury removing agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Select 80 mesh, specific surface area is 20m 2 / g, pore volume is 0.1cm 3 / g of microspheres γ-Al 2 O 3 Put 5g carrier into 10ml 2.88mol / L manganese acetate solution (Mn(CH 3 COO) 2 ·4H 2 O), immerse for 1 hour. After the above-mentioned impregnating solution is completely immersed in the carrier, remove the carrier and dry it at 100°C for 5 hours to remove the moisture in the carrier; then, the dried γ-Al loaded with manganese nitrate 2 O 3 The carrier is calcined and activated under aerobic conditions at 500°C for 6 hours to decompose manganese nitrate and obtain γ-Al loaded with active components of manganese dioxide 2 O 3 Carrier. In the above process, an oxygen environment is preferred when drying and calcining the carrier impregnated with the immersion liquid.

[0026] 54g of ferric chloride hexahydrate and 32g of sodium carbonate are mixed and kneaded for 1 hour. The kneading time can be selected between 1 to 5 hours. After the kneading is completed...

Example Embodiment

[0028] Example 2

[0029] Select 80 mesh, specific surface area is 150m 2 / g, pore volume is 1.0cm 3 / g of microspheres γ-Al 2 O 3 Put 5g carrier into 1ml 0.014mol / L manganese nitrate solution (Mn(NO 3 ) 2 ·4H 2 O), immerse for 1 hour. After the above-mentioned impregnating solution is completely immersed in the carrier, remove the carrier and dry it at 100°C for 5 hours to remove the moisture in the carrier; then, the dried γ-Al loaded with manganese nitrate 2 O 3 The support is calcined and activated under aerobic conditions at 300°C for 10 hours to decompose manganese nitrate and obtain γ-Al loaded with manganese dioxide active components 2 O 3 Carrier. In the above process, an oxygen environment is preferred when drying and calcining the carrier impregnated with the immersion liquid.

[0030] Mix 8.4 g of ferric chloride hexahydrate and 5 g of sodium carbonate and knead for 1.5 hours. The kneading time can be selected between 1 and 5 hours. After the kneading is completed, the ...

Example Embodiment

[0032] Example 3

[0033] Select 80 mesh, specific surface area is 250m 2 / g, pore volume is 1.5cm 3 / g of microspheres γ-Al 2 O 3 Put 5g of carrier into 10ml 1.047mol / L manganese nitrate solution (Mn(NO 3 ) 2 ·4H 2 O), immerse for 0.5 hour. After the above-mentioned immersion solution is completely immersed in the carrier, remove the carrier and dry it at 105°C for 4 hours to remove the moisture in the carrier; then, the dried γ-Al loaded with manganese nitrate 2 O 3 The carrier is calcined and activated under aerobic conditions at 300°C for 9 hours to decompose manganese nitrate and obtain γ-Al loaded with manganese dioxide active components 2 O 3 Carrier. In the above process, an oxygen environment is preferred when drying and calcining the carrier impregnated with the immersion liquid.

[0034] 24.5g of ferric chloride hexahydrate and 14.5g of sodium carbonate are mixed and kneaded for 2 hours. The kneading time can be selected between 1 and 5 hours. After the kneading is compl...

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Abstract

The invention relates to a sulfur and mercury removing agent, which consists of a carrier and active ingredients, wherein the carrier can be a single carrier or is formed by two or more kinds of carriers; the carrier accounts for 10 to 80 percent of the total weight of the sulfur and mercury removing agent; and the active ingredients include 0.1 to 40 weight percent of manganese dioxide MnO2 and 0.1 to 60 weight percent of magnetic iron oxide Fe21.333O32. The invention also discloses a method for preparing the sulfur and mercury removing agent. The sulfur and mercury removing agent prepared by the method has high sulfur capacity and high mercury capacity, has a sulfur and mercury removal efficiency of over 99 percent and can be widely used in sulfur and mercury removing treatment devices for flue gases of coal burning power plants and light dydrocarbons of oil refining and chemical plants.

Description

technical field [0001] The invention relates to a purifying agent for desulfurization and demercuration of light hydrocarbons in coal-fired thermal power plants, oil refineries and chemical plants, and belongs to the technical field of chemical adsorption purification. Background technique [0002] At present, most of the research on desulfurization and mercury removal agents is concentrated in the field of flue gas desulfurization and mercury removal, but there are not many researches on mercury removal in the petroleum processing industry. In the prior art, for flue gas desulfurization and mercury removal, solid desulfurization and mercury removal adsorbents are often used to remove sulfides and mercury in the flue gas. For flue gas desulfurization and demercury treatment, most of them use separate desulfurizers and mercury removal agents; the research on flue gas desulfurizers has been relatively mature, and commonly used flue gas desulfurizers include limestone, magnesiu...

Claims

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Application Information

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IPC IPC(8): B01D53/50B01D53/64
Inventor 杜文庆刘振义
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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